What is the congruent side of an isosceles triangle?

legs
The congruent sides of the isosceles triangle are called the legs. The other side is called the base. The angles between the base and the legs are called base angles. The angle made by the two legs is called the vertex angle.

Are isosceles triangles always congruent?

An isosceles triangle is a triangle that has at least two congruent sides. The congruent sides of the isosceles triangle are called the legs. One of the important properties of isosceles triangles is that their base angles are always congruent.

Does an isosceles right triangle have congruent sides?

An isosceles right triangle is an isosceles triangle and a right triangle. This means that it has two congruent sides and one right angle. Therefore, the two congruent sides must be the legs.

What does it mean if two sides of a triangle are congruent?

Two triangles are congruent if they meet one of the following criteria. : All three pairs of corresponding sides are equal. : Two pairs of corresponding sides and the corresponding angles between them are equal.

How can you prove a triangle is isosceles?

Hence proved. Theorem 2: Sides opposite to the equal angles of a triangle are equal. Proof: In a triangle ABC, base angles are equal and we need to prove that AC = BC or ∆ABC is an isosceles triangle….Isosceles Triangle Theorems and Proofs.

MATHS Related Links
Reflection Symmetry	Surface Area Of A Cone

How many congruent lines does an isosceles triangle have?

two congruent sides
When a triangle has two congruent sides it is called an isosceles triangle. An isosceles triangle has two of its sides and internal angles being equal. When two lines intersect, at the point of their intersection an angle is formed.

Are bases of a triangle congruent?

Base angles of an isosceles triangle are congruent. Base angles of an isosceles triangle are complementary. Base angles of an isosceles triangle can be equal to the vertex angle.

How do you prove a triangle is a right isosceles triangle?

use the distance formula to calculate the side length of each side of the triangle. If any 2 sides have equal side lengths, then the triangle is isosceles.

Can a triangle be isosceles and right?

Yes a Right triangle can also be an isosceles triangle. Isosceles Right Triangle has one of the angles exactly 90 degrees and two sides which is equal to each other. Since the two sides are equal which makes the corresponding angle congruent.

What do you call a triangle with all sides are congruent?

An equilateral triangle means that the three sides of your triangle are all congruent.